The following Web pages provide information about EPA's air monitoring regulations and guidance and state and local monitoring plans.

• National Air Monitoring Strategy

• Sampling Schedule Calendar

• State and Local Monitoring Plans

• Monitoring Regulations

• 40 CFR 50

• 40 CFR 53 and 58

• Policy Memoranda and Technical Guidance
  • FY14 NPM Guidance – Monitoring Appendix (PDF) (25pp, 337k) - 4/11/2013
  • FY15 NPM Guidance – Monitoring Appendix (PDF) (26pp, 347k) - 3/17/2014
  • FY16 NPM Guidance – Monitoring Appendix (PDF) (26pp, 413k) - 4/30/2015

• Network Assessment Tools and Guidance